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发明名称
摘要
申请公布号
DE2044098(A1)
申请公布日期
1972.03.09
申请号
DE19702044098
申请日期
1970.09.05
申请人
WITZIG E;FRANK R
发明人
分类号
B23B39/12;(IPC1-7):B23B39/12
主分类号
B23B39/12
代理机构
代理人
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